EP1058026A2 - Rolling-lobe air spring - Google Patents
Rolling-lobe air spring Download PDFInfo
- Publication number
- EP1058026A2 EP1058026A2 EP00110758A EP00110758A EP1058026A2 EP 1058026 A2 EP1058026 A2 EP 1058026A2 EP 00110758 A EP00110758 A EP 00110758A EP 00110758 A EP00110758 A EP 00110758A EP 1058026 A2 EP1058026 A2 EP 1058026A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bellows
- bead
- piston
- rolling
- air spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0454—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/424—Plunger or top retainer construction for bellows or rolling lobe type air springs
Definitions
- the invention relates to a bellows air spring according to the Preamble of claim 1.
- Air springs such as those used in vehicle construction for cushioning wheel suspensions, essentially consist of a rolling bellows (air bellows), which is delimited on the one hand by a cover plate (cone plate) and on the other hand by a rolling piston, thus enclosing an air spring volume in its interior.
- the bellows itself is made of rubber or rubber-like plastic with end fastening beads, such as. B. described in DE-OS 29 05 791.
- the end of the bellows on the cover plate is usually attached by flanging, which is why the (top) cover plate is also called “flare plate”.
- the lower edge of the rolling bellows ie the lower bead section, is usually designed as a cone provided with sealing grooves, in order then to be screwed to a multi-part rolling piston provided with a tensioning plate.
- EP 0 546 385 B1 includes an air bellows a braced sealing bead shown by a flanged edge of a flanged plate upper fastening part is wrapped and tightly clamped.
- air springs are known, which also end of the rolling bellows facing the rolling piston Flanging is attached.
- DE-PS 10 39 375 is the lower bead of the air spring bellows with that of the rolling piston firmly connected.
- the coaxial with the bellows, cylindrical rolling piston runs in a flanged Edge that grips around the bead and this against the Ring edge of a lid presses. This lid is used close the guide body and opposite the roller bellows complete.
- the flanged edge is around the bead of the Roll bellows laid around.
- the piston part consists of one piece trained molded body and is by flanging with the Rollbalg connected in that the outer peripheral wall of the Roll-off piston for fastening the facing bellows end is flanged inwards.
- the corresponding bellows has one from the flanged edge encircled bead-like ring set, which with a Reinforcement insert is provided.
- the following catalog of requirements has been drawn up to overcome the above-mentioned problems when fastening the bellows to the open rolling piston by flanging:
- the special design of the bulb-side bead must be such that, during the flanging, the flanged edge contacts the bellows as late as possible in order to prevent the bead from escaping downwards into the free space.
- the flared gap must already be closed to such an extent that the bead can no longer slip out.
- the bead must immediately clamp against the inner surface of the contact wall when gripping.
- the object of the present invention is, based on the prior art available with the Gbm 298 08 109 U1, to design the piston-end bellows in such a way that it can be securely flanged even when the piston is open at the end.
- the bulb-side bead of the bellows is formed at 45 ° to the horizontal ao, that there are no undercuts on the vulcanization mold or on the product itself, there are no molding and molding difficulties.
- the bead is thus so dimensionally stable that a rolling piston can then be flanged with it. Bead formations with sealing surface inclinations between 45 ° and 65 ° have proven to be particularly advantageous. Due to the inward flaring process, the bead swings into a 90 ° position to the horizontal.
- the reduction in diameter in the lower area of the bellows is only to favor the formation of the roll fold necessary when operating the air bellows.
- Diameter of the bead core and the diameter of the Piston wall coordinated.
- the bellows air spring 2 shown in FIG. 1 exists essentially from a flexible rubber bellows 4 or rubber-like plastic, a cover plate 6 and a rolling piston 8. At both ends is the Roll bellows 4 each provided with a bead 10, 12.
- the "Upper" bead 10 is by crimping with the cover plate (Flare plate) 6 connected during the bulb-side bead 12 attached to a flanged edge 30 of the rolling piston 8 is.
- cover plate 6 and 8 rolling piston Bellows encloses the air spring interior 28.
- Figs. 2a-c Essential details of the bellows air spring according to the invention are shown in Figs. 2a-c.
- the in Fig. 2a has bellows 4 shown on one side in longitudinal section bulges at both ends.
- the upper bead 10 is formed in a conventional manner and is used to attach the bellows 4 to the cover plate (Flaring plate) 6.
- the lower one, for attachment to the Roll piston 8 provided roll bellows bead 12 is invention-specific to the flange 30 of the open top Rolling piston 8 adapted.
- the piston shown in Fig. 3 8 shows a cylindrical piston rim 30. This is the condition before beading 12.
- the bead-shaped thickening of the end of the roll bellows has a sealing surface 14.
- the bulb-side bead 12 has a bead core (ring body) 24 made of steel or steel wire.
- the diameter 22 of the bead 12 in the piston area is matched to the diameter 26 of the piston wall.
- the bead 12 of the rolling bellows 4 does not hook into a pre-flanged piston rim 30.
- the piston rim 30 is not pre-flanged.
- the edge 30 is initially cylindrical; it closes only by the flaring process around the bead 12 of the bellows 4.
- the bead 12 is tightly enclosed by the flanged edge 30 of the rolling piston 8, the piston-side sealing surface 14 of the rolling bellows 4 being at 90 °, based on the "horizontal ", is rotated so that it rests over the entire surface at the upper end of the piston wall (FIG. 2c).
- the piston rim 30 is deflected inwards by a total of approximately 270 °. This flanging process is carried out with a special tool.
- the outer surface of the rolling piston 8 is the diameter 22 of the bellows 4 in the bead area less than the other Bellows diameter 20.
- shock absorber is to be integrated in the air spring 2, so it can be a separate part in the open piston 8th to be built in.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Diaphragms And Bellows (AREA)
- Vehicle Body Suspensions (AREA)
- Glass Compositions (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Joints Allowing Movement (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Clamps And Clips (AREA)
- Sealing Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Rollbalg-Luftfeder gemäß dem
Oberbegriff des Anspruchs 1.The invention relates to a bellows air spring according to the
Preamble of
Luftfedern, wie sie im Fahrzeugbau zur Abfederung von
Radaufhängungen Verwendung finden, bestehen im wesentlichen
aus einem Rollbalg (Luftfederbalg), der endseitig
einerseits von einer Abdeckplatte (Konusplatte) und
andererseits von einem Abrollkolben begrenzt ist und so in
seinem Innenraum ein Luftfedervolumen umschließt. Der
Rollbalg selbst besteht aus Gummi oder gummiähnlichem
Kunststoff mit endseitigen Befestigungswülsten, wie z. B.
in der DE-OS 29 05 791 beschrieben.
Das an der Abdeckplatte befindliche Rollbalg-Ende wird
üblicherweise durch Bördeln befestigt, weshalb die (obere)
Abdeckplatte auch "Bördelplatte" genannt wird. Der untere
Rand des Rollbalgs, d. h. die untere Wulstpartie wird
üblicherweise als mit Dichtrillen versehener Konus
ausgebildet, um dann - mit einem Spannteller versehen - an
einen mehrteiligen Abrollkolben geschraubt zu werden.Air springs, such as those used in vehicle construction for cushioning wheel suspensions, essentially consist of a rolling bellows (air bellows), which is delimited on the one hand by a cover plate (cone plate) and on the other hand by a rolling piston, thus enclosing an air spring volume in its interior. The bellows itself is made of rubber or rubber-like plastic with end fastening beads, such as. B. described in DE-OS 29 05 791.
The end of the bellows on the cover plate is usually attached by flanging, which is why the (top) cover plate is also called "flare plate". The lower edge of the rolling bellows, ie the lower bead section, is usually designed as a cone provided with sealing grooves, in order then to be screwed to a multi-part rolling piston provided with a tensioning plate.
In der Fig. 1 der EP 0 546 385 B1 ist ein Luftfederbalg mit einem verspannbaren Dichtwulst dargestellt, der von einem umgebördelten Rand eines als Bördelplatte ausgebildeten oberen Befestigungsteiles umlaßt und dicht verspannt ist. 1 of EP 0 546 385 B1 includes an air bellows a braced sealing bead shown by a flanged edge of a flanged plate upper fastening part is wrapped and tightly clamped.
Darüberhinaus sind Luftfedern bekannt, bei denen auch das dem Abrollkolben zugewandte Ende des Rollbalges mittels Bördeln befestigt ist. Gemäß der DE-PS 10 39 375 ist der untere Wulst des Luftfeder-Balges mit dem des Abrollkolbens fest verbunden. Der zum Rollbalg gleichachsig angeordnete, zylinderförmige Abrollkolben läuft in einen umgebördelten Rand aus, der um den Wulst herumgreift und diesen gegen den Ringrand eines Deckels drückt. Dieser Deckel dient dazu, den Führungskörper zu schließen und gegenüber dem Rollbalg abzuschließen. Der umgebördelte Rand wird um den Wulst des Rollbalges herumgelegt.In addition, air springs are known, which also end of the rolling bellows facing the rolling piston Flanging is attached. According to DE-PS 10 39 375 is the lower bead of the air spring bellows with that of the rolling piston firmly connected. The coaxial with the bellows, cylindrical rolling piston runs in a flanged Edge that grips around the bead and this against the Ring edge of a lid presses. This lid is used close the guide body and opposite the roller bellows complete. The flanged edge is around the bead of the Roll bellows laid around.
Ohne solch einen auf dem Abrollkolben anzubringenden zusätzlichen Deckel bzw. Spannteller kommt der in dem Gebrauchsmuster DE 298 08 109 U1 beschriebene Abrollkolben aus. Dabei besteht der Kolbenteil aus einem einteilig ausgebildeten Formkörper und wird durch Bördeln mit dem Rollbalg dadurch verbunden, daß die äußere Umfangswand des Abrollkolbens zur Befestigung des dem .Abrollkolben zugewandten Balgendes einwärts umgebördelt ist. Das entsprechende Balgende weist einen vom Bördelrand umgriffenen wulstartigen Ringsatz auf, der mit einer Verstärkungseinlage versehen ist.Without such a to be attached to the rolling piston additional lid or clamping plate comes in the Utility model DE 298 08 109 U1 described rolling piston out. The piston part consists of one piece trained molded body and is by flanging with the Rollbalg connected in that the outer peripheral wall of the Roll-off piston for fastening the facing bellows end is flanged inwards. The corresponding bellows has one from the flanged edge encircled bead-like ring set, which with a Reinforcement insert is provided.
Praktische Versuche zur Herstellung derartiger Luftfedern haben gezeigt, daß Probleme bei der Befestigung des Rollbalges am offenen Kolben auftreten. Der in üblicher Weise angeformte Wulst eines Balges ist am offenen Abrollkolben nicht ohne weiteres einsetzbar. Bei einem Wulst an der oberen Abdeckplatte liegt die Dichtfläche waagerecht, um beim Bördeln gegen die obere Abdeckplatte angepreßt zu werden. Da der Abrollkolben aber keine stirnseitige Platte aufweist, die üblicherweise als Gegenhaltefläche dient, ist das von der waagerechten Abdeckplatte her bekannte Bördelungsprinzip nicht auf die Befestigung des unteren Rollbalgrandes übertragbar. Ein vorgeschlagenes Kippen des Wulstes um 90° ist auch nicht möglich, da der Rollbalg in einer Form hergestellt wird und der sich einstellende Hinterschnitt keine Entformung möglich macht (Fig. 4).Practical tests for the manufacture of such air springs have shown that problems with the attachment of the Roll bellows appear on the open piston. The one in the usual The bulge of a bellows is open Roll-off pistons cannot be used easily. At a Bead on the top cover plate is the sealing surface horizontally to flare against the top cover plate to be pressed. Since the rolling piston is none has end plate, which is usually called Counter surface, that is from the horizontal Cover plate ago known flanging principle not on the Attachment of the lower edge of the roller bellows transferable. On proposed tilting of the bead by 90 ° is also not possible because the bellows is made in a mold and the resulting undercut no demoulding makes possible (Fig. 4).
Zur überwindung der genannten Probleme bei der Befestigung
des Rollbalgs am offenen Abrollkolben durch Bördeln wurde
folgender Forderungekatalog aufgestellt:
Die besondere Ausbildung des kolbenseitigen Wulstes muß
derart sein, daß beim Bördeln ein Kontakt der Bördelkante
mit dem Balg so spät wie möglich erfolgt, um ein Ausweichen
des Wulstes nach unten in den freien Raum zu vermeiden. Der
Bördelspalt muß beim Eingreifen des Wulstes bereits so weit
geschlossen sein, daß der Wulst nicht mehr herausrutschen
kann. Der Wulst muß sich beim Erfassen gleich klemmend
gegen die Innenfläche der Kontaktwand legen.
Zusammengefaßt besteht die Aufgabe der vorliegenden
Erfindung darin, ausgehend von dem mit dem Gbm 298 08 109
U1 vorliegenden Stand der Technik das kolbenseitige
Balgende so zu gestalten, daß es auch bei einem stirnseitig
offenen Kolben sicher bördelbar ist.The following catalog of requirements has been drawn up to overcome the above-mentioned problems when fastening the bellows to the open rolling piston by flanging:
The special design of the bulb-side bead must be such that, during the flanging, the flanged edge contacts the bellows as late as possible in order to prevent the bead from escaping downwards into the free space. When the bead engages, the flared gap must already be closed to such an extent that the bead can no longer slip out. The bead must immediately clamp against the inner surface of the contact wall when gripping. In summary, the object of the present invention is, based on the prior art available with the Gbm 298 08 109 U1, to design the piston-end bellows in such a way that it can be securely flanged even when the piston is open at the end.
Die Lösung dieser Aufgabe ist mit Anspruch 1 gegeben. Durch
die erfindungsgemäße Ausgestaltung der kolbenseitigen
Wulstpartie kann diese mit einem einteiligen Stahlblech-Abrollkolben
ohne zusätzliche Befestigungsteile, wie z. B.
Spannteller und dergleichen, verbördelt werden. Dies trägt
zur Bauteilereduzierung des Gesamtsystems bei.This object is achieved with
Dadurch, daß der kolbenseitige Wulst des Rollbalgs unter
45° zur Waagerechten ao ausgebildet wird, daß weder an der
Vulkanisationsform noch am Produkt selbst
Hinterschneidungen vorhanden sind, gibt es keine Ein- und
Ausformschwierigkeiten. Der Wulst ist somit so formstabil,
daß anschließend ein Abrollkolben damit gebördelt werden
kann.
Wulstausbildungen mit Dichtflächenneigungen zwischen 45°
und 65° haben sich als besonders vorteilhaft erwiesen.
Durch den einwärts gerichteten Bördelprozeß schwenkt der
Wulst in eine 90°-Lage zur Waagerechten.Because the bulb-side bead of the bellows is formed at 45 ° to the horizontal ao, that there are no undercuts on the vulcanization mold or on the product itself, there are no molding and molding difficulties. The bead is thus so dimensionally stable that a rolling piston can then be flanged with it.
Bead formations with sealing surface inclinations between 45 ° and 65 ° have proven to be particularly advantageous. Due to the inward flaring process, the bead swings into a 90 ° position to the horizontal.
Die Durchmasserverringerung im unteren Rollbalg-Bereich ist lediglich zur Begünstigung der Ausbildung der Rollfalte beim Betrieb des Luftfederbalgs notwendig. Dabei sind der Durchmesser des Wulstkerns und der Durchmesser der Kolbenwand aufeinander abgestimmt.The reduction in diameter in the lower area of the bellows is only to favor the formation of the roll fold necessary when operating the air bellows. Here are the Diameter of the bead core and the diameter of the Piston wall coordinated.
Anhand der Abbildungen wird die erfindungsgemäße Rollbalg-Luftfeder
näher beschrieben. Es zeigt:
Die in der Fig. 1 dargestellte Rollbalg-Luftfeder 2 besteht
im wesentlichen aus einem flexiblen Rollbalg 4 aus Gummi
oder gummiähnlichem Kunststoff, einer Abdeckplatte 6 und
einem Abrollkolben 8. An seinen beiden Enden ist der
Rollbalg 4 jeweils mit einem Wulst 10, 12 versehen. Der
"obere" Wulst 10 ist durch Bördeln mit der Abdeckplatte
(Bördelplatte) 6 verbunden, während der kolbenseitige Wulst
12 an einer Bördelkante 30 des Abrollkolbens 8 befestigt
ist. Der von Abdeckplatte 6 und Abrollkolben 8 begrenzte
Rollbalg umschließt den Luftfederinnenraum 28.The
Wesentliche Einzelheiten der erfindungsgemäßen Rollbalg-Luftfeder
sind in den Fig. 2a - c dargestellt. Der in Fig.
2a einseitig im Längsschnitt abgebildete Rollbalg 4 weist
an seinen beiden Enden wulstförmige Verdickungen auf. Der
obere Wulst 10 ist in herkömmlicher Weise ausgebildet und
dient zur Befestigung des Rollbalgs 4 an der Abdeckplatte
(Bördelplatte) 6. Der untere, zur Befestigung am
Abrollkolben 8 vorgesehene Rollbalg-Wulstrand 12 ist
erfindungsindividuell an den Bördelrand 30 des oben offenen
Abrollkolbene 8 angepaßt. Der in Fig. 3 dargestellte Kolben
8 gibt einen zylindrischen Kolbenrand 30 wieder. Dies ist
der Zustand vor dem Bördeln des Wulstes 12.Essential details of the bellows air spring according to the invention
are shown in Figs. 2a-c. The in Fig.
2a has
Zur Vereinfachung der Rollbalg-Herstellung ist die Geometrie der Rollbalgoberfläche und der dazu korrespondierenden Herstellungsform reliefartig so ausgestaltet, daß auf einen Hinterschnitt weitgehend verzichtet werden kann. Die weitgehende Vermeidung eines Hinterschnitts erleichtert die Entformung.To simplify the production of rolling bellows, the Geometry of the surface of the bellows and that corresponding production form in relief designed that largely on an undercut can be dispensed with. The extensive avoidance of a Undercuts facilitate demolding.
Die Anbringung des Rollbalgs 4 an dem Abrollkolben 8 soll
sowohl mechanisch fest als auch pneumatisch dicht sein. Zu
diesem Zweck weist die wulstförmige Verdickung des
kolbenseitigen Rollbalg-Endes eine Dichtfläche 14 auf.
Diese Dichtfläche 14 ist bei senkrecht stehendem Rollbalg 4
nicht waagerecht sondern ist um einen Winkel α zu der auf
der Balgachse 16 stehenden Senkrechten 18 gekippt. In der
Abbildung ist dieser Winkel α = 45° Er kann aber auch
einen größeren Wert annehmen. Sowohl im Hinblick auf den
Entformungsvorgang des herzustellenden Rollbalgs 4 als auch
zur Anbringung des Wulstes 12 an dem Bördelrand 30 des
Kolbens 8 haben sich Winkel zwischen 45° und 65° als
besonders gut geeignet erwiesen.
Zur-Verstärkung weist der kolbenseitige Wulst 12 einen
Wulstkern (Ringkörper) 24 aus Stahl oder Stahldraht auf.The attachment of the rolling bellows 4 to the
For reinforcement, the bulb-
Der Durchmesser 22 des Wulstes 12 ist im Kolbenbereich auf
den Durchmesser 26 der Kolbenwand abgestimmt. Dabei hakt
der Wulst 12 des Rollbalgs 4 nicht in einen vorgebördelten
Kolbenrand 30 ein. Wie aus der Fig. 3 ersichtlich, ist der
Kolbenrand 30 nicht vorgebördelt. Der Rand 30 ist zunächst
zylindrisch ausgebildet; er schließt sich erst durch den
Bördelvorgang um den Wulst 12 des Balges 4. Am Ende des
Bördelvorganges ist der Wulst 12 vom gebördelten Rand 30
des Abrollkolbens 8 fest umschlossen, wobei die
kolbenseitige Dichtfläche 14 des Rollbalgs 4 auf 90°,
bezogen auf die "Waagerechte", gedreht wird und so
ganzflächig am oberen Ende der Kolbenwand anliegt (Fig.
2c). D. h.: Der Kolbenrand 30 wird insgesamt um ca 270°
nach innen umgelenkt.
Dieser Bördelvorgang erfolgt mit einem speziellen Werkzeug.The
This flanging process is carried out with a special tool.
Zur Verbesserung des Abrollvorganges des Rollbalgs 4 auf
der Außenfläche des Abrollkolbens 8 ist der Durchmesser 22
des Rollbalgs 4 im Wulstbereich geringer als der sonstige
Rollbalgdurchmesser 20.To improve the rolling process of the
Soll ein Stoßdämpfer in die Luftfeder 2 integriert werden,
so kann er als separates Teil in den offenen Kolben 8
eingebaut werden. If a shock absorber is to be integrated in the
- 22nd
- Rollbalg-LuftfederBellows air spring
- 44th
- Rollbalg, BalgRoll bellows, bellows
- 66
- Abdeckplatte (Bördelplatte)Cover plate (flare plate)
- 88th
- AbrollkolbenRolling piston
- 1010th
- oberer Wulst(rand)upper bead (edge)
- 1212th
- kolbenseitiger Wulst(rand)bulb-side bead (edge)
- 1414
- kolbenseitige Dichtflächepiston-side sealing surface
- 1616
- BalgachseBellow axis
- 1818th
- Senkrechte zur BalgachsePerpendicular to the bellows axis
- 2020th
- Rollbalg-DurchmesserBellows diameter
- 2222
- Durchmesser des Wulstes im KolbenbereichBead diameter in the piston area
- 2424th
- Wulstkern (Ringkörper)Bead core (ring body)
- 2626
- Durchmesser der KolbenwandPiston wall diameter
- 2828
- Luftfeder-InnenraumAir spring interior
- 3030th
- Bördelrand, Bördelkante, KolbenrandFlanged edge, flanged edge, piston rim
Claims (5)
dadurch gekennzeichnet,
characterized,
dadurch gekennzeichnet,
characterized,
dadurch gekennzeichnet,
characterized,
dadurch gekennzeichnet,
wobei der Durchmesser (22) des Wulstkerns (24) und der Durchmesser (26) der Kolbenwand aufeinander abgestimmt sind.
characterized,
the diameter (22) of the bead core (24) and the diameter (26) of the piston wall being matched to one another.
dadurch gekennzeichnet,
characterized,
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925092A DE19925092C2 (en) | 1999-06-01 | 1999-06-01 | Bellows air suspension |
DE19925092 | 1999-06-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1058026A2 true EP1058026A2 (en) | 2000-12-06 |
EP1058026A3 EP1058026A3 (en) | 2003-04-16 |
EP1058026B1 EP1058026B1 (en) | 2004-11-17 |
Family
ID=7909885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00110758A Expired - Lifetime EP1058026B1 (en) | 1999-06-01 | 2000-05-19 | Rolling-lobe air spring |
Country Status (6)
Country | Link |
---|---|
US (1) | US6412758B1 (en) |
EP (1) | EP1058026B1 (en) |
JP (1) | JP4519994B2 (en) |
AT (1) | ATE282780T1 (en) |
DE (2) | DE19925092C2 (en) |
HU (1) | HU224445B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007025771A1 (en) * | 2005-09-02 | 2007-03-08 | Saf-Holland Gmbh | Pneumatic suspension bellow |
WO2014036316A1 (en) * | 2012-08-29 | 2014-03-06 | Firestone Industrial Products Company, Llc | End members and gas spring assemblies including same |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10135063B4 (en) * | 2001-07-18 | 2005-07-14 | Progress-Werk Oberkirch Ag | Air spring pot and method for producing the same |
DE10212898B4 (en) * | 2002-03-22 | 2004-03-04 | GKN Löbro GmbH | Rolling bellows and rolling bellows arrangement |
US7322567B2 (en) * | 2004-05-20 | 2008-01-29 | Arvinmeritor Technology, Llc | Air spring assembly |
US20060208403A1 (en) * | 2005-03-16 | 2006-09-21 | Arvinmeritor Technology, Llc | Air spring assembly with flexible can |
EP2488770B1 (en) * | 2009-10-14 | 2022-12-14 | Firestone Industrial Products Company, LLC | End member, gas spring assembly and method |
EP2614270B1 (en) | 2010-09-10 | 2024-03-27 | Hendrickson USA, L.L.C. | Air spring for a heavy-duty vehicle with damping features |
US9139061B2 (en) | 2013-04-03 | 2015-09-22 | Watson & Chalin Manufacturing, Inc. | Vehicle suspension system with reservoir for air spring damping |
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- 1999-06-01 DE DE19925092A patent/DE19925092C2/en not_active Expired - Fee Related
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- 2000-05-19 DE DE50008641T patent/DE50008641D1/en not_active Expired - Lifetime
- 2000-05-19 AT AT00110758T patent/ATE282780T1/en not_active IP Right Cessation
- 2000-05-19 EP EP00110758A patent/EP1058026B1/en not_active Expired - Lifetime
- 2000-05-31 JP JP2000162969A patent/JP4519994B2/en not_active Expired - Fee Related
- 2000-05-31 HU HU0002086A patent/HU224445B1/en not_active IP Right Cessation
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007025771A1 (en) * | 2005-09-02 | 2007-03-08 | Saf-Holland Gmbh | Pneumatic suspension bellow |
AU2006286719B2 (en) * | 2005-09-02 | 2009-06-18 | Saf-Holland Gmbh | Pneumatic suspension bellow |
CN100510460C (en) * | 2005-09-02 | 2009-07-08 | 塞夫·霍兰德有限公司 | Pneumatic suspension bellow |
US8240643B2 (en) | 2005-09-02 | 2012-08-14 | Saf-Holland Gmbh | Pneumatic suspension bellows |
WO2014036316A1 (en) * | 2012-08-29 | 2014-03-06 | Firestone Industrial Products Company, Llc | End members and gas spring assemblies including same |
US9556922B2 (en) | 2012-08-29 | 2017-01-31 | Firestone Industrial Products Company, Llc | End members and gas spring assemblies including same |
Also Published As
Publication number | Publication date |
---|---|
DE50008641D1 (en) | 2004-12-23 |
DE19925092A1 (en) | 2001-01-11 |
JP4519994B2 (en) | 2010-08-04 |
ATE282780T1 (en) | 2004-12-15 |
DE19925092C2 (en) | 2003-04-10 |
HU224445B1 (en) | 2005-09-28 |
EP1058026A3 (en) | 2003-04-16 |
HUP0002086A3 (en) | 2003-08-28 |
EP1058026B1 (en) | 2004-11-17 |
HU0002086D0 (en) | 2000-08-28 |
JP2001012526A (en) | 2001-01-16 |
HUP0002086A2 (en) | 2001-04-28 |
US6412758B1 (en) | 2002-07-02 |
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